LST 2251CTLE User manual

0832–CPD–0518
© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL [phone] • FAX [phone]
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
2251CTLE_DBL_LST_EN_0850.PDF • PAGE 1
ABuilding Safety. Building Security.
Multi-criteria Detector
2251CTLE – COPTIR
Description
The Multi-criteria Detector 2251CTLE incorporates four
separate detection units, allowing to determine the four
essential characteristics of fi re:
• C – carbon monoxide
• OP – optically visible smoke
• T – temperature
• IR – infrared radiation
The typical patterns of fi re are recognised by means
of intelligent analysis of the measured values of all four
detection units. That way on the one hand the detector
shows an especially high insensitiveness to unwanted
alarms, on the other hand fi res are recognised quickly
and safely.
The multi-criteria detector can operate in diffi cult fi elds
of application, for instance
• workshops – e.g., welding shops, paint shops
• hotel rooms with steam formation in the bathroom
• smoking areas in bars or restaurants
• discotheques with fog generators
• garages or loading ramps
and is therefore suitable for virtually universal use.
• ADM loop technology with
System Sensor/200 protocol
• Combines optical smoke sensor, heat
detector, infrared sensor and carbon
monoxide sensor
• Highest false alarm immunity
• Several sensitivity levels and thermal-
only mode selectable
• Constant response sensitivity
The optical measurement chamber uses the
scattered light principle to detect visible smoke
particles. The thermal unit responds to tempera-
ture changes within defi ned time intervals (rate-
of-rise principle according to class A1R) up to a
maximum temperature of 58°C.
Smouldering fi res which spread out slowly can
also be detected early and safely by using the
durable carbon monoxide sensor. The infrared
sensor responds to the fl ickering of fl ames and
supports the detection of fi res with low smoke
development (e.g., alcoholic fi res).
The two LEDs with 360° visibility indicate the
activated condition of the detector.

© LABOR STRAUSS SICHERUNGSANLAGENBAU GMBH • A-1231 WIEN • WIEGELESTRASSE 36 • TEL [phone] • FAX [phone]
[email protected] • WWW.LST.AT • ALL RIGHTS RESERVED
2251CTLE_DBL_LST_EN_0850.PDF • PAGE 2
ABuilding Safety. Building Security.
Specifi cations
Operating voltage Supply through loop voltage
Current consumption max. 300µA (quiescent)
Alarm temperature 58°C (maximum principle)
Infrared sensor
Optical wavelength 800 – 1200nm
Measurement range 0 – 450µW/cm2
Measurement range CO-sensor 0 – 500ppm
Operating temperature max. +45°C
Ambient temperature -20°C to +55°C (no condensation or icing)
Relative humidity 15 – 90% (no condensation)
Dimensions ø × H 102 × 60 (mm)
Colour cream
Weight 130g
Approvals VdS G207054
0832-CPD-0518
Order number 241051
Order name Optical Thermal CO IR Detector/Anal./200/SS 2251CTLE
The infl uence of contamination on the optical measu-
rement system is compensated for by using intelligent
evaluation algorithms. With that, the response sensiti-
vity of the detector is kept constant for a long time –
a further effective step to avoid false alarms.
The response sensitivity of the detector can be individu-
ally adjusted in 5 steps between 1.5%/m and 4.2%/m
according to the application. In addition, the detector
adjusts the response thresholds of the individual de-
tection units dynamically, depending on their measured
values, changes the evaluation of the criteria, or speeds
up respectively delays the alarm activation. This evalu-
ation logic allows the multi-criteria detector to reliably
distinguish between emerging fi re and noise variables.
A thermal-only operation of the detector is also possib-
le. In that case the application of the detector is limited
to rooms which are not higher than 7.5m.
The proven ADM loop technology with System Sen-
sor/200 protocol establishes a permanent communica-
tion between the fi re detection control panel and the
detector. That ensures a periodical function testing of
the detector.
The detector address is selected with two decadic ro-
tary switches. Therefore the detector can be changed
quickly and without additional tools.
A detector function test can be conveniently conducted
using a magnet. The detector can be attached to dif-
ferent types of bases and it can be protected against
theft.